TY  - CONF
AU  - Kragović, Milan
AU  - Stojmenović, Marija
AU  - Petrović, Jelena
AU  - Loredo, Jorge
AU  - Pasalić, Snežana
AU  - Nedeljković, Andrijana
AU  - Ristović, Ivica
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/497
AB  - In this paper influence of alginate encapsulation on point of zero charge (pH(pzc)) and thermodynamic properties of the natural and Fe(III)-modified zeolite were investigated. The pH(pzc) was determined by using 0.1000 g of the samples and 50 cm(3) of the solution containing KNO3 in concentrations of 0.0001-0.01 mol/dm(3) for initial pH (pH(i)) in range between 2 and 12. The obtained pH(pzc) were 6.2 for natural (NZA) and 6.5 for modified zeolite encapsulated with alginate (FeA). Influence of the temperature on the adsorption of lead was investigated for different initial lead ions concentrations (180-3200 mgPb(2+)/dm(3)) and temperatures of 30, 40 and 60 degrees C. For both adsorbents, adsorption of lead ions increased with increasing its initial concentration as well as with increasing of the temperature. Also, the best fits of the experimental data were obtained by Freundlich isotherm. The temperature had positive influence adsorption and removal of lead ions increased with increasing its initial concentration as well as with increasing of the temperature. The thermodynamic parameters (the standard free energy of adsorption, standard enthalpy and standard entropy) were also determined. The results showed that lead ions removal from aqueous solutions is much favourable for FeA then NZA.
PB  - Elsevier Science Bv, Amsterdam
C3  - 12th International Conference Interdisciplinarity in Engineering (Inter-Eng 2018)
T1  - Influence of Alginate Encapsulation on Point of Zero Charge (pH(pzc)) and Thermodynamic Properties of the Natural and Fe(III) Modified Zeolite
EP  - 293
SP  - 286
VL  - 32
DO  - 10.1016/j.promfg.2019.02.216
UR  - conv_854
ER  - 

@conference{
author = "Kragović, Milan and Stojmenović, Marija and Petrović, Jelena and Loredo, Jorge and Pasalić, Snežana and Nedeljković, Andrijana and Ristović, Ivica",
year = "2019",
abstract = "In this paper influence of alginate encapsulation on point of zero charge (pH(pzc)) and thermodynamic properties of the natural and Fe(III)-modified zeolite were investigated. The pH(pzc) was determined by using 0.1000 g of the samples and 50 cm(3) of the solution containing KNO3 in concentrations of 0.0001-0.01 mol/dm(3) for initial pH (pH(i)) in range between 2 and 12. The obtained pH(pzc) were 6.2 for natural (NZA) and 6.5 for modified zeolite encapsulated with alginate (FeA). Influence of the temperature on the adsorption of lead was investigated for different initial lead ions concentrations (180-3200 mgPb(2+)/dm(3)) and temperatures of 30, 40 and 60 degrees C. For both adsorbents, adsorption of lead ions increased with increasing its initial concentration as well as with increasing of the temperature. Also, the best fits of the experimental data were obtained by Freundlich isotherm. The temperature had positive influence adsorption and removal of lead ions increased with increasing its initial concentration as well as with increasing of the temperature. The thermodynamic parameters (the standard free energy of adsorption, standard enthalpy and standard entropy) were also determined. The results showed that lead ions removal from aqueous solutions is much favourable for FeA then NZA.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "12th International Conference Interdisciplinarity in Engineering (Inter-Eng 2018)",
title = "Influence of Alginate Encapsulation on Point of Zero Charge (pH(pzc)) and Thermodynamic Properties of the Natural and Fe(III) Modified Zeolite",
pages = "293-286",
volume = "32",
doi = "10.1016/j.promfg.2019.02.216",
url = "conv_854"
}

Kragović, M., Stojmenović, M., Petrović, J., Loredo, J., Pasalić, S., Nedeljković, A.,& Ristović, I.. (2019). Influence of Alginate Encapsulation on Point of Zero Charge (pH(pzc)) and Thermodynamic Properties of the Natural and Fe(III) Modified Zeolite. in 12th International Conference Interdisciplinarity in Engineering (Inter-Eng 2018)
Elsevier Science Bv, Amsterdam., 32, 286-293.
https://doi.org/10.1016/j.promfg.2019.02.216
conv_854

Kragović M, Stojmenović M, Petrović J, Loredo J, Pasalić S, Nedeljković A, Ristović I. Influence of Alginate Encapsulation on Point of Zero Charge (pH(pzc)) and Thermodynamic Properties of the Natural and Fe(III) Modified Zeolite. in 12th International Conference Interdisciplinarity in Engineering (Inter-Eng 2018). 2019;32:286-293.
doi:10.1016/j.promfg.2019.02.216
conv_854 .

Kragović, Milan, Stojmenović, Marija, Petrović, Jelena, Loredo, Jorge, Pasalić, Snežana, Nedeljković, Andrijana, Ristović, Ivica, "Influence of Alginate Encapsulation on Point of Zero Charge (pH(pzc)) and Thermodynamic Properties of the Natural and Fe(III) Modified Zeolite" in 12th International Conference Interdisciplinarity in Engineering (Inter-Eng 2018), 32 (2019):286-293,
https://doi.org/10.1016/j.promfg.2019.02.216 .,
conv_854 .

TY  - JOUR
AU  - Kragović, Milan
AU  - Pasalić, Snežana
AU  - Marković, Marija
AU  - Petrović, Marija
AU  - Nedeljković, Blagoje
AU  - Momcilović, Miloš
AU  - Stojmenović, Marija
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/461
AB  - In present paper, the influence of the initial pH and concentration of Pb2+ on its adsorption by the natural (NZA) and Fe(III)-modified zeolite-alginate beads (FeA) was studied. Results showed that modification of the starting materials have a positive effect on their adsorption capacities (102 and 136 mg/g for the NZA and FeA, respectively). After encapsulation, the mechanism of lead adsorption by both adsorbents was changed and ion exchange dominates. The best adsorption was achieved for initial pH > 3.8. Cation exchange capacity, structural properties, and hydrophobicity of samples were also determined, and the presence of the alginate has no significant influence on investigated properties of samples. Experiments on wastewater from tailings of lead and zinc mine Grot, Serbia, showed that after treatment with both adsorbents, the content of the most abundant heavy metals (Pb, Zn, Hg, and Mn) significantly decreased.
PB  - MDPI, Basel
T2  - Minerals
T1  - Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions
IS  - 1
VL  - 8
DO  - 10.3390/min8010011
UR  - conv_817
ER  - 

@article{
author = "Kragović, Milan and Pasalić, Snežana and Marković, Marija and Petrović, Marija and Nedeljković, Blagoje and Momcilović, Miloš and Stojmenović, Marija",
year = "2018",
abstract = "In present paper, the influence of the initial pH and concentration of Pb2+ on its adsorption by the natural (NZA) and Fe(III)-modified zeolite-alginate beads (FeA) was studied. Results showed that modification of the starting materials have a positive effect on their adsorption capacities (102 and 136 mg/g for the NZA and FeA, respectively). After encapsulation, the mechanism of lead adsorption by both adsorbents was changed and ion exchange dominates. The best adsorption was achieved for initial pH > 3.8. Cation exchange capacity, structural properties, and hydrophobicity of samples were also determined, and the presence of the alginate has no significant influence on investigated properties of samples. Experiments on wastewater from tailings of lead and zinc mine Grot, Serbia, showed that after treatment with both adsorbents, the content of the most abundant heavy metals (Pb, Zn, Hg, and Mn) significantly decreased.",
publisher = "MDPI, Basel",
journal = "Minerals",
title = "Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions",
number = "1",
volume = "8",
doi = "10.3390/min8010011",
url = "conv_817"
}

Kragović, M., Pasalić, S., Marković, M., Petrović, M., Nedeljković, B., Momcilović, M.,& Stojmenović, M.. (2018). Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions. in Minerals
MDPI, Basel., 8(1).
https://doi.org/10.3390/min8010011
conv_817

Kragović M, Pasalić S, Marković M, Petrović M, Nedeljković B, Momcilović M, Stojmenović M. Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions. in Minerals. 2018;8(1).
doi:10.3390/min8010011
conv_817 .

Kragović, Milan, Pasalić, Snežana, Marković, Marija, Petrović, Marija, Nedeljković, Blagoje, Momcilović, Miloš, Stojmenović, Marija, "Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions" in Minerals, 8, no. 1 (2018),
https://doi.org/10.3390/min8010011 .,
conv_817 .